This is my program and it is not working

Question

import java.io.*;
class sample
{
public static void main (String [] args)
{
DataInputStream dis = new DataInputStream (System.in);
int radius;
radius = dis.readline();
radius = Integer parseInt (dis.readline());
System .out .println (radius )
}
}

Answer 1

@Azdren Spaces don't matter unless it's separating the identifier/keyword from itself.

There's quite a few errors here.
1)
just use: radius = dis.readInt();
or
Parse it when reading the line.

2)
using DataInputStreamer must be surrounded in try catch, do one of the following:
try{
radius = .....;
}
catch(IOException)
{

}

or

Throw the exception after your main.

3)
You missed a semi-colon after your println.

I suggest using what @Azdren suggested, or maybe a Scanner for System.in reading.

Answer 2

thank you for answer the real reason behind this is we have to use IOException in the place after "public static void main (String [] args IOException.". this is the right way. we can also use scanner. but this is oldest method work exclusively for Java 1.2 thank you for the answers